Artificial tooth



(No Model.) A

J. J. R. PATRICK.

ARTIFICIAL TOOTH. No. 380,512. Patented Apr. 3, 1888.

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NITED STATES PATENT rrrcn.

JOHN J. R. PATRICK, OF BELLEVILLE, ILLINOIS.

ARTIFICIAL TOOTH.

SPECIFICATION forming part of Letters Patent No. 380,512, dated April 3, 1888.

Application filed December 20, 1886. Renewed December 1, 1887. Serial No. 256,666. (No model.)

To all whom it may concern:

Be it known that 1, Joan J. R. PilrnroK, a citizen of the United States, and a resident of Belleville, in the county ofSt. Clair and State of Illinois, have invented certain new and useful Improvements in Metal Bases for Artificial Teeth; and I do declare the following to bea full, clear, and exact description of the inven tion, such as will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings, and to letters or figures of reference marked thereon, which formapart of this specification.

Figure 1 of the drawings is a plan view of blank. Fig. 2 is a perspective View of blank bent upon itself. Fig. 3 is aperspective view of blank, showing teeth. Fig. 4 is a vertical section through band and tooth; Fig. 5, a perspective view.

My invention relates to metal bases for artificial teeth; and it consists in the construction and novel combination of parts, as hereinafter described and claimed.

Referring by letter to the accompanying drawings,Adesignates the blank or strip from which the metal base is to be formed. The blank or strip A is cut from sheet metal, preferably in the form shown. The exact form, however, is not essential, as the shape of the strip must be varied to suit the tooth on which it is to be used. The strip Ais then bent upon itself at the transverse middle line, as at B, and three cuts, 0 I) E, are made near the fold B. These cuts 0 D E do not extend entirely across the blank, and are made for the purpose of permitting the metal between them to be bent in opposite directions to form the teeth F G, the teeth H I being left in their normal positions. The toothed portion of the strip thus prepared is put into the body of the tooth, across the shorter axis of the latter,and the tooth thus prepared is then baked. After the tooth has been baked the arms of the strip are separated right and left and bent around the cervical margin and their meeting ends soldered together to form the metal base. The artificial tooth is then ready to be attached to the natural-tooth root.

Although I have described the metal base as being made from a single blank, it is evident that it may be formed from two pieces of equal length placed face to face, and cut and bent as above described to form the bent teeth that are to be baked in the porcelain clay to form the artificial tooth.

Having described my invention, what I claim, and desire to secure by Letters Patent, 1s-

The combination, with the body of an artificial tooth, of a metal base having oppositelybent teeth on one of its edges, said toothed portion being embedded in the body of the tooth, the projecting ends of the metal being bent around the cervical margin of the tooth, and the meeting ends of the base soldered together, as set forth.

In testimony whereof Iafiix my signatu re in presence of two witnesses.

JOHN J. R. PATRICK.

Witnesses:

\V. A. REIss, FRED SUNKEL. 

